I was going to post on another thread, but I think because of the number of documentaries I am going to post, this deserves it's own thread. Over the last few years I've watched documentaries like it's my job and I hope I can point other history lovers towards some great entertainment. I am going to post only full documentaries and documentary series. If you have any trouble figuring out the order of documentaries in a series, feel free to PM me. I will do my best to keep the documentaries categorized into ancient and modern time periods, but it could get messy. Lastly, the documentaries I post will all be in English and mostly US or UK. This is my seriously awesome list of seriously awesome full documentaries for history buffs to watch!

[ame=http://www.youtube.com/watch?v=vCVYF_XIfvk]Byzantium, The Lost Empire: 1. Building the Dream - YouTube[/ame]
History Channel: Rome the Rise and Fall of an Empire 13 part series(this is different from the BBC docudrama series by the same or similar name):

I wanted to add this to the list. This is amazing documentary as well as book.

If you ever wondered the origin of the English language, this is the series for you. I watched the series on History Channel and got the book after the second episode and kept up with the series each week.

Great documentary about Indigenous Australians and the complex and often bloody relations between them and the European invaders. (For the sake of your sanity, avoid the comments.)
[ame="http://www.youtube.com/watch?v=VcslF8yQ1Tg"]The First Australians.Ep1/7.pt.1/7 - They came to stay. - YouTube[/ame]